/Engine/Source/Editor/UnrealEd/Public/Elements/Component/ComponentElementEditorWorldInterface.h
If you want to copy an array of elements that are potentially different types, you probably want to use the higher-levelUTypedElementCommonActions::CopyNormalizedElementsfunction instead.
virtual void CopyElements ( [TArrayView](API\Runtime\Core\Containers\TArrayView)< const [FTypedElementHandle](API\Runtime\TypedElementFramework\Elements\Framework\FTypedElementHandle) > InElementHandles, [FOutputDevice](API\Runtime\Core\Misc\FOutputDevice) & Out )